Field issues related to effectiveness of insecticide‐treated nets in Tanzania

  title={Field issues related to effectiveness of insecticide‐treated nets in Tanzania},
  author={Tobias E Erlanger and Abdollghader Enayati and Janet Hemingway and Hassan Mshinda and Adriana Tami and Christian Lengeler},
  journal={Medical and Veterinary Entomology},
Abstract.  Insecticide‐treated nets (ITNs) impregnated with pyrethroid insecticides have become one of the most promising interventions to prevent malaria in highly endemic areas. Despite the large body of experience documenting their health impact and the best way to distribute them, some key practical issues remain unresolved. For example, the duration of effective life of a net under field conditions is unknown. The most important factor affecting net effectiveness is the issue of regular re… 

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Remote Effect of Insecticide-Treated Nets and the Personal Protection against Malaria Mosquito Bites

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Insecticide treated nets use and its determinants among settlers of Southwest Ethiopia

This study in Southwest Ethiopia showed a high proportion of net ownership compared to a household survey from Ethiopia which included in the World Malaria Report and demonstrated there was still a gap between ownership and use of ITNs.

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A call for use of common sense and diversified use of insecticides is concluded after the first line problem of fast disappearance of insecticide treatment was solved.

Evaluation of New Tools for Malaria Vector Control in Cameroon: Focus on Long Lasting Insecticidal Nets

All the tested products were found effective (95–100% knockdown and mortality rates), although a significant decrease of efficacy was seen with lambda-cyhalothrinWP IRS, alpha-cypermethrin CTNs and LLINs.

Field durability of the same type of long-lasting insecticidal net varies between regions in Nigeria due to differences in household behaviour and living conditions

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Creating an "enabling environment" for taking insecticide treated nets to national scale: the Tanzanian experience

Tanzania's experience in creating an enabling environment for insecticide-treated nets scale-up, promoting the development of a commercial sector for insecticides and net types, and targeting pregnant women with highly subsidized insecticide -treated nets through a national voucher scheme are described.

Determinants of Use of Insecticide Treated Nets for the Prevention of Malaria in Pregnancy: Jinja, Uganda

While self-reported ITN ownership and use was common throughout pregnancy, it was unable to pinpoint why a sizable fraction of Ugandan women did not always adhere to recommendations for use of an ITN during pregnancy.

Household survey of availability of long-lasting insecticide-treated nets and its determinants in rural Mozambique

The household availability of long-lasting insecticide-treated nets in Changara district has not yet reached levels that may have an impact on the incidence of malaria, despite distribution through campaign and antenatal care.

Does Insecticide Treated Mosquito Nets (ITNs) Prevent Clinical Malaria in Children Aged Between 6 and 59 Months Under Program Setting?

With the presence of many programmatic deficiencies like poor ITN distribution and re-treatment services, ITNs were not significantly associated with clinical malaria in under-five children when used during low-transmission period.



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The findings clearly show that researchers should not conceptualise people's knowledge about malaria and its prevention as something that is there, that belongs to a cultural tradition and remains the same over time, in other words, as something static.

Long-lasting treated mosquito nets: a breakthrough in malaria prevention.

Strengthening production capacity of LLNs in Africa and further reducing the price through well-targeted public– private partnerships will be an effective way to go to scale, reduce the malaria burden, and contribute to poverty alleviation.

Re-treatment of mosquito nets with insecticide.

Insecticide-treated bednets and curtains for preventing malaria.

  • C. Lengeler
  • Medicine
    The Cochrane database of systematic reviews
  • 2000
Insecticide-treated nets appear to be effective in reducing childhood mortality and morbidity from malaria, and widespread access to insecticide- treated nets will require major financial, technical and operational inputs.

Insecticide-treated bed nets and curtains for preventing malaria.

  • C. Lengeler
  • Medicine
    The Cochrane database of systematic reviews
  • 2004
ITNs are highly effective in reducing childhood mortality and morbidity from malaria, but universal deployment will require major financial, technical, and operational inputs.

The effect of delivery mechanisms on the uptake of bed net re-impregnation in Kilifi District, Kenya.

The results of recently completed trials in Africa of insecticide-treated bed nets (ITBN) offer new possibilities for malaria control and the future of new delivery services and their financing are discussed in the context of their likely impact upon previously defined protective efficacy and cost- effectiveness estimates.

Wash resistance of insecticide-treated materials.

Introducing insecticide‐treated nets in the Kilombero Valley, Tanzania: the relevance of local knowledge and practice for an Information, Education and Communication (IEC) campaign

Although the sharp rise in ownership and use of ITNs by the population (from 10 to > 50%) suggests that they contributed significantly to the success of the programme, a social marketing strategy to promote ITNs was developed on the basis of these findings.

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It is concluded that asking people to refrain from washing their nets is unrealistic, and a ‘low‐dose frequent‐treatment’ strategy of insecticide application may be more appropriate in the long run.

Effect of community‐wide use of insecticide‐treated nets for 3–4 years on malarial morbidity in Tanzania

Sustainability over several years of benefits against malarial morbidity of insecticide‐treated nets and whether, as a result of fading immunity, older age groups ‘paid for’ the benefits which they had enjoyed when younger are investigated.